LOW-MOLECULAR-WEIGHT POLYACRYLIC ACIDS CONTAINING PHOSPHORUS AND USE THEREOF AS DISPERSANTS

摘要

The present invention relates to an aqueous solution of an acrylic acid polymer having a total phosphorus content of organically and possibly inorganicly bonded phosphorus, wherein (a) the first portion of phosphorus is in the form of a phosphinate group bonded to the polymer chain, (b) (C) is in the form of a salt, in which the third part of phosphorus is dissolved, and is in the form of a phosphinate and / or phosphonate group bonded to the end of the polymer chain, Or more is in the form of a phosphinate group bonded to the polymer chain.